Search found 10 matches
- Thu Mar 16, 2017 11:27 pm
- Forum: *Alkenes
- Topic: When to use cis and trans?
- Replies: 2
- Views: 1563
Re: When to use cis and trans?
this isn't a stupid question at all! as far as i know from what's shown in the course reader: when naming cycloalkanes, you use "cis" when the 2 substituents are on the same side of the ring and "trans" when the substituents are on different sides of the ring. this same type of r...
- Mon Mar 13, 2017 4:11 pm
- Forum: *Haloalkanes
- Topic: Order of writing halogens
- Replies: 3
- Views: 1763
Re: Order of writing halogens
You would start numbering at the halogen that comes alphabetically first. For example if you had 1-bromo-3-chlorocyclohexane, because "b" comes before "c", you start numbering at the bromo and then go in the direction that gives the chloro the smallest number. http://www.chemsin...
- Mon Mar 13, 2017 4:07 pm
- Forum: *Haloalkanes
- Topic: Order of writing halogens
- Replies: 3
- Views: 1763
Re: Order of writing halogens
You would start numbering at the halogen that comes alphabetically first. For example if you had 1-bromo-3-chlorocyclohexane, because "b" comes before "c", you start numbering at the bromo and then go in the direction that gives the chloro the smallest number.
- Mon Mar 13, 2017 3:50 pm
- Forum: *Cycloalkanes
- Topic: numbering the carbons
- Replies: 4
- Views: 1660
Re: numbering the carbons
Because alphabetically "e" comes before "f", you would want the ethyl to have the lowest number. When you start numbering at ethyl and go clockwise the fluoro is on the 4th carbon; similarly if you go counterclockwise the fluoro is still on the 4th carbon. (If these were differen...
Re: Numbering
My TA mentioned the sum rule works only in some cases so it is not always a reliable way to determine numbering
- Mon Mar 06, 2017 9:15 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Quiz 3 Winter 2017
- Replies: 183
- Views: 29805
Re: Quiz 3 Winter 2017
Alice Jung 1C wrote:Can somebody please clarify what compound is named in #1 please for the practice quiz 3? The print on my CR is very faint.
It is: CH3 CH2 CH2 CH2 CH2 CH2 CH (off of this C there is CH(CH3)2) CH2 CH2 CH3
So there are 10 carbons on the main chain and CH(CH3)2 is the substituent off the 7th C
- Fri Feb 10, 2017 12:03 pm
- Forum: Interesting Applications: Rechargeable Batteries (Cell Phones, Notebooks, Cars), Fuel Cells (Space Shuttle), Photovoltaic Cells (Solar Panels), Electrolysis, Rust
- Topic: Applications
- Replies: 1
- Views: 617
Applications
Found this article and thought it was really cool to read about applications of electrochem in this battery! Just for fun :)
https://m.techxplore.com/news/2017-02-l ... pkeep.html
https://m.techxplore.com/news/2017-02-l ... pkeep.html
- Tue Feb 07, 2017 1:42 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: memory trick [ENDORSED]
- Replies: 3
- Views: 974
Re: memory trick [ENDORSED]
I really like that trick, thanks so much! Another "trick" I've heard of is OIL RIG in trying to remember the loss/ gain of electrons for oxidation and reduction: OIL = "oxidation is losing", RIG = "reduction is gaining"
- Wed Feb 01, 2017 9:05 pm
- Forum: Calculating Work of Expansion
- Topic: Sign of Work
- Replies: 4
- Views: 1072
Re: Sign of Work
when a system does work on its surroundings, the system is exerting work so work is negative. if the surroundings are doing work on the system, work is positive because the system is absorbing the work!
- Wed Feb 01, 2017 9:01 pm
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Question on Units of Temperature
- Replies: 4
- Views: 787
Re: Question on Units of Temperature
you can use K and C interchangeably because a 1° change in Celsius is equal to 1° change in kelvin